<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="UTF-8">
		<title>0.5px的线</title>
		<style>
			.line {
				position: absolute;
				left: 0;
				top: 10px;
				width: 100%;
				height: 1px;
				background-color: #000000;
				transform: scaleY(0.5);
			}

			.line1 {
				position: relative;
				top: 20px;
				width: 100%;
				height: 1px;
				background-color: #000000;
			}
		</style>
	</head>
	<body>
		<div class="line"></div>
		<div class="line1"></div>
	</body>
</html>
